Fetch aluminum data from upstream sources

[khaeru]

This PR will follow on #345 to replace mirrored downloads of data from 3 upstream sources with code that fetches up-to-date data in current formats from those sources.

Work will proceed after #345 is merged.

More TBA

How to review

TBA

PR checklist

• Continuous integration checks all ✅
• Add or expand tests; coverage checks both ✅
• Add, expand, or update documentation.
• Update doc/whatsnew.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.7%. Comparing base (fdd4e60) to head (2c43b0e).

Additional details and impacted files

@@           Coverage Diff           @@
##            main    #348     +/-   ##
=======================================
- Coverage   78.5%   77.7%   -0.9%     
=======================================
  Files        217     217             
  Lines      17432   17432             
=======================================
- Hits       13701   13553    -148     
- Misses      3731    3879    +148     

see 7 files with indirect coverage changes

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